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Vol. 152, No. 5, May 2013, pp. 11-17

 

Bullet

 

Piezoelectric Sensor of Control Surface Hinge Moment
 
Zongjin REN, Shengnan GAO *, Zhenyuan JIA, Yongyan SHANG and Yifei GAO

Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, 116024, PR China

Tel.: +86-0411-84708415

E-mail: gsn198804@163.com

 

 

Received: 1 April 2013   /Accepted: 15 May 2013   /Published: 27 May 2013

Digital Sensors and Sensor Sysstems

 

Abstract: Based on the theory of piezoelectricity, a new sensor of control surface hinge moment with high linearity which uses piezoelectric quartz crystal as sensitive element is studied. It realizes the measurement of force by measuring the charge which is generated by piezoelectric quartz crystal that is integrated inside of sensor. In order to simulate the interaction between airfoil and airflow under the steady state, ANSYS is used to analyze the stress of airfoil in the air. ANSYS is also used to analyze potential distribution and electric field intensity distribution of piezoelectric quartz crystal which is under the action of force and moment, respectively. The measuring principle and design process of sensor are given in this paper, and the linearity and repeatability of sensor are obtained on the basis of experimental research and data analysis. The new sensor offers a new thinking for lucubrating and accurate measurement of hinge moment sensor.

 

Keywords: Piezoelectric quartz crystal; Hinge moment; Sensor

 

 

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